- Go to Options/Setup
- Set "shaders: 0" to "shaders: 1"
If this doesn't work or Toribash crashes, turn off some of the premium graphics settings located under the Shaders option. If the shaders still fail even with all of the premium settings off, then you might want to try investing in a better graphics card.
I also suggest you use the search button and read the FAQ before posting a thread next time.